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iSCSIとLACPを使用したESXiのパス劣化

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環境

  • ONTAP
  • インターフェイス グループ(ifgrps)
  • LACP

問題

iSCSIとインターフェースグループを使用し、スイッチでLACPが有効になっている環境では、ESXiホスト上でパスの喪失と回復イベントがほぼ絶えず発生し、ハートビートのタイムアウトも発生しています。
Lost access to volume 69456395-6af690f5-a6e8-405b7f3945a0 (AFF_A_ISCSI01) due to connectivity issues. Recovery attempt is in progress and outcome will be reported shortly.
2026-05-26T11:57:37.947Z In(14) vobd[2097956]:  [vmfsCorrelator] 6549668914423us: [esx.problem.vmfs.heartbeat.timedout] 69695a51-e5ac77ad-736e-405b7f3945a0 AFF_A_ISCSI01
2026-05-26T11:57:57.852Z In(14) vobd[2097956]:  [vmfsCorrelator] 6549674101479us: [vob.vmfs.heartbeat.recovered] Reclaimed heartbeat for volume 69695a51-e5ac77ad-736e-405b7f3945a0 (AFF_A_ISCSI01): [Timeout] [HB state abcdef02 offset 3506176 gen 103 stampUS 6549674101297 uuid 69b19a2a-e0a30c4d-6d0a-405b7f39ee60 jrnl <FB 16777226> drv 24.82]
ストレージアレイ上の個々のイーサネットポートにはエラーは発生していませんが、セッションが既に存在しているにもかかわらず、イニシエータがストレージに再ログインしようとする流れがほぼ絶え間なく発生しています:
  [?]  Fri May 29 11:36:52 -0500 [AFFC30-A: iswt_admin_thread: iscsi.notice:notice]: ISCSI: New session from initiator iqn.1998-01.com.vmware:esxi01:cii_encrypt/AK1MHP6KDheprDaYkpztCFv8nkUQBBYNMYJ7+E2fjZc=/cii_encrypt at IP addr xxx.xxx.xxx.xx
  [?]  Fri May 29 11:42:12 -0500 [AFFC30-A: iswt_admin_thread: iscsi.warning:notice]: ISCSI: New session request from initiator iqn.1998-01.com.vmware:esxi01, a session from this initiator already exists.

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